1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef LOCATION_LBS_CONTEXTHUB_NANOAPPS_CALIBRATION_MAGNETOMETER_MAG_SPHERE_FIT_CAL_MAG_SPHERE_FIT_H_ 18 #define LOCATION_LBS_CONTEXTHUB_NANOAPPS_CALIBRATION_MAGNETOMETER_MAG_SPHERE_FIT_CAL_MAG_SPHERE_FIT_H_ 19 20 #include "calibration/magnetometer/mag_cal/mag_cal.h" 21 #include "calibration/sphere_fit/sphere_fit_calibration.h" 22 23 #define NUM_SPHERE_FIT_DATA 50 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 struct SphereFit { 30 struct LmParams params; 31 struct LmData lm_data; 32 struct SphereFitCal sphere_cal; 33 struct ThreeAxisCalData sphere_param; 34 }; 35 36 struct MagCalSphere { 37 // KASA Fit Struct. 38 struct MagCal moc; 39 40 // Sphere fit Struct. 41 struct SphereFit sphere_fit; 42 43 // down sampler control. 44 uint32_t number_of_data_samples; 45 uint32_t sample_counter; 46 uint32_t sample_drop; 47 float inv_data_size; 48 float batch_time_in_sec; 49 50 // Sphere fit data set. 51 float sphere_data[THREE_AXIS_DATA_DIM * NUM_SPHERE_FIT_DATA]; 52 }; 53 54 void initMagCalSphere( 55 struct MagCalSphere *mocs, 56 const struct MagCalParameters *mag_cal_parameters, 57 const struct DiversityCheckerParameters *diverse_parameters, 58 float default_odr_in_hz); 59 60 void magCalSphereDestroy(struct MagCalSphere *mocs); 61 62 enum MagUpdate magCalSphereUpdate(struct MagCalSphere *mocs, 63 uint64_t sample_time_us, float x, float y, 64 float z); 65 66 void magCalSphereOdrUpdate(struct MagCalSphere *mocs, float odr_in_hz); 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif // LOCATION_LBS_CONTEXTHUB_NANOAPPS_CALIBRATION_MAGNETOMETER_MAG_SPHERE_FIT_CAL_MAG_SPHERE_FIT_H_ 73